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CHINGCUNG®
Shanghai Husu M&E Technology Co., Ltd · Enameled Wire Specialist
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QZYB-2/180
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QZYB-2/180 (EIW) Enameled Copper Rectangular Wire
Class 180 (H) · Polyesterimide Grade 2 Heavy Build IEC 60317-0-2 / GB/T 6109.5
High-performance rectangular copper winding wire for transformers, reactors, and large motors. Excellent thermal stability and mechanical strength.
Product Specifications QZYB-2/180 (EIW Series)
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Model Number
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QZYB-2/180 (also known as EIW / polyesterimide enameled rectangular copper wire)
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Brand
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CHINGCUNG®
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Thermal Class
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180 (H-Class) — continuous operation
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Conductor Material
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Electrolytic Copper (Cu-ETP, high purity)
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Insulation Type
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Modified Polyesterimide resin
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Film Build
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Grade 2 (Heavy / double coating) — standard
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Conductor Shape
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Rectangular / Flat
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Thickness (T) Range
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2.0 mm – 5.6 mm
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Width (W) Range
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3.0 mm – 7.0 mm
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Cut-through Temperature
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≥300°C
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Standards Compliance
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IEC 60317-0-2, GB/T 6109.5, NEMA MW 30-C
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Application
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Transformers, reactors, traction motors, inductors, wind turbine generators
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Standard Bare Conductor Sizes (T × W) — Grade 2 Thickness × Width in mm
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Thickness (T) mm
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Width (W) mm
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Min Film Increase (mm)
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Max O.D. (T × W) mm
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Approx. Equivalent Round Cu
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2.00
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3.00
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0.12
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2.24 × 3.24
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φ2.0 mm
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2.00
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4.00
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0.12
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2.24 × 4.24
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φ2.5 mm
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2.00
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5.00
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0.12
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2.24 × 5.24
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φ3.0 mm
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2.50
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4.00
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0.14
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2.78 × 4.28
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φ3.0 mm
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2.50
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5.00
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0.14
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2.78 × 5.28
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φ3.5 mm
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3.00
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4.00
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0.15
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3.30 × 4.30
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φ3.5 mm
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3.00
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5.00
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0.15
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3.30 × 5.30
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φ4.0 mm
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3.00
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6.00
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0.15
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3.30 × 6.30
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φ4.5 mm
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3.50
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5.00
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0.15
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3.80 × 5.30
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φ4.5 mm
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3.50
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6.00
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0.15
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3.80 × 6.30
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φ5.0 mm
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4.00
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5.00
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0.16
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4.32 × 5.32
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φ5.0 mm
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4.00
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6.00
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0.16
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4.32 × 6.32
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φ5.5 mm
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4.00
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7.00
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0.16
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4.32 × 7.32
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φ6.0 mm
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4.50
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6.00
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0.17
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4.84 × 6.34
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φ5.5 mm
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4.50
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7.00
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0.17
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4.84 × 7.34
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φ6.0 mm
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5.00
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6.00
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0.17
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5.34 × 6.34
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φ6.0 mm
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5.00
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7.00
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0.17
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5.34 × 7.34
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φ6.5 mm
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5.60
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7.00
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0.18
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5.96 × 7.36
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φ6.5 mm
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*Grade 1 / Grade 3 available upon request. Film increase values are minimum per side. Custom dimensions available for volume orders.
Key Advantages
· ✓ High conductivity — electrolytic copper core
· ✓ Excellent thermal endurance up to 200°C
· ✓ Grade 2 heavy build for superior dielectric strength
· ✓ Outstanding mechanical strength & abrasion resistance
· ✓ Resistant to moisture, chemicals & refrigerants
· ✓ Optimized space factor for rectangular slots
Primary Applications
· ✓ Power transformers & distribution transformers
· ✓ Reactor windings & chokes
· ✓ Traction motors (railway, EV)
· ✓ Wind turbine generators
· ✓ High-current inductors
· ✓ Rectifier transformers
Manufacturing & Quality
· ✓ ISO 9001:2015 certified facilities
· ✓ Automated enameling lines with real-time QC
· ✓ 100% continuity & dielectric testing
· ✓ Precision dimensional control
· ✓ Strict raw material traceability
Packaging — Export-ready Wooden Spools
Standard packaging: CHINGCUNG enameled rectangular copper wires are wound on heat-treated, fumigation-free wooden spools (ISPM 15 compliant), suitable for direct export to all global markets. The spools are robustly constructed to protect the wire during long-distance shipping and handling.
Spool options: Custom spool sizes available upon request. Wooden spools are secured with moisture-resistant wrapping and labeled per customer requirements.
Export advantage: ISPM 15 heat-treated wood — no additional fumigation required at destination ports. Safe, reliable, and environmentally responsible.
Customization: In addition to standard sizes listed above, we offer custom thickness/width combinations, non-standard dimensions, and special spool packaging. Grade 1 (single coating) and Grade 3 (triple coating) available for specific insulation requirements. Contact our technical team for consultation.
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CHINGCUNG · Shanghai Husu M&E Technology Co., Ltd
Professional Enameled Wire Manufacturer · Established 2015
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Tel: +86 13621982708 | Email:️ leon.xu@chingcung.com
Web: https://chingcung.com
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QZYB-2/180 Enameled Copper Rectangular Wire · Specifications subject to continuous improvement · Complies with RoHS & REACH
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QZYB-2/180 Polyesterimide Enameled Rectangular Copper Winding Wire Images
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